...before making your inane comments.
What he is saying is perfectly rational. In case you've been living under a rock for the last few years most companies use more and more web-based applications, from helpdesk/support systems to basic office apps. There's no reason to think this will stop any time soon.
He's also not saying that everything will be using a remote cloud, he's saying many enterprises will run their own cloud infrastructure. So you will NOT be giving out your company secrets to a 3rd party and it will NOT rely on the "internet" to work.
VDI fit well into this since it's not unreasonable to expect that not every user in a company will need a full-fledged PC desktop to do their job. Those who do will use VDI, those who don't might use a web-based workstation.
Finally, he's not talking about home users or gamers.
Of course, this might not happen but it's not like he's talking out of his ass.

But sure, you'll still need a "desktop" computer with a web browser to connect to these apps, it's just that instead of using firefox/thunderbird/openoffice/your file browser, most users will use an all-in-one cloud offering (like Google gmail/docs/calendar).
This actually make a LOT of sense for most non-technical entreprise users that usually just use an office suite and some internal apps (that are more and more web-based).

I mean it's kind of the same thing as with the commandline interface. In the 80s, it was the only interface everybody used. Now, for 99% of users, it has been replaced with a GUI, but it's still useful for the techies.